Mr Wringe wrote on social networking site Facebook: "Corrie's family is perhaps slightly unusual in their collective knowledge and backgrounds in police, intelligence and security.

"As a result, information has been identified or analysis conducted which the police have not had the capacity or capability to undertake, or perhaps have, but chosen not to communicate this with the family.

"As a result, there is a lack of trust towards the media management approach the police have employed to date, including coming out immediately after Corrie disappeared, emphatically claiming there was 'no third party involvement', clearly not a statement supported by the evidence then or now."

The RAF serviceman was reported missing when he failed to turn up at RAF Honington, Suffolk, for work.

Recent reports claim that he tried to walk the ten miles back to the base when he vanished.

A Suffolk Police spokeswoman said yesterday: "Despite this work, media appeals and support from a variety of other groups and agencies who have been searching and assisting with the investigation, there are still no positive sightings of him after 3.25am on Saturday, September 24 in Brentgovel Street in Bury St Edmunds. Work to find him continues.

"To date a huge area has been searched, hundreds of hours of CCTV have been viewed and dozens of people have been traced and spoken to.

"Inquiries are being made to identify all of those who were out in the town in the early hours of Saturday, September 24 in a bid to find out what has happened, and officers continue to ask anyone who was there to come forward.

"A large amount of work has been carried out behind the scenes, however, at this stage, there is still not a clear line of inquiry as to what may have happened to him and officers continue to look at - and investigate - all possibilities.

"We are aware that we can't provide the answers that Corrie's family need, but police are continuing work to find Corrie."